Calculate the number 4248
[7109] Calculate the number 4248 - NUMBERMANIA: Calculate the number 4248 using numbers [2, 8, 2, 5, 32, 501] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 4
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Calculate the number 4248

NUMBERMANIA: Calculate the number 4248 using numbers [2, 8, 2, 5, 32, 501] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 4
#brainteasers #math #numbermania
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A father and son went fishing...

A father and son went fishing one day. While they were out in the boat, the boy suddenly became curious about the world around him. He asked his father, "How does this boat float?
The father replied, "Don't rightly know son." A little later, the boy looked at his father and asked, "How do fish breath underwater?"
Once again the father replied, "Don't rightly know son." A little later the boy asked his father, "Why is the sky blue?"
Again, the father replied. "Don't rightly know son." Finally, the boy asked his father, "Dad, do you mind my asking you all of these questions?"
The father replied, "Of course not, you don't ask questions, you never learn nothin'."
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Envelope machine patent

In 1849, the first U.S. patent for an envelope-making machine was issued to Jesse K. Park and Cornelius S. Watson of New York City (No. 6055). It was never used commercially, as it was shortly superceded by patents on improved machines by other inventors. It was treadle-operated and its mechanism included a stamper rod, gumming apparatus and folding apparatus. The patent model still exists in the collection of the National Postal Museum.«
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